JP3196063U - Touch panel with fingerprint identification function - Google Patents

Abstract

Provided is a touch panel having a fingerprint identification function that greatly reduces the entire manufacturing cost and improves the accuracy of fingerprint identification by matching a fingerprint identification chip and a touch panel. A touch panel having a fingerprint identification function includes a glass substrate, an electrode layer, a first insulating layer, a second insulating layer, and a fingerprint identification sensing layer. The glass substrate includes first and second planes 11a and 11b, the electrode layer is disposed on the second plane, and the electrode layer includes a plurality of first and second electrodes 121 and 122 and a plurality of metal wirings 123. The electrodes are electrically connected by selecting a plurality of metal wirings. The first insulating layer covers the intersection of the first and two electrodes. The second insulating layer covers the electrode layer. The fingerprint identification sensing layer is disposed on the second insulating layer and includes a plurality of fingerprint identification chips and a plurality of transmission conductors 152, and the plurality of fingerprint identification chips are electrically connected to the plurality of transmission conductors. [Selection] Figure 1

Description

  The present invention relates to a touch panel having a fingerprint identification function, and relates to a touch panel having a fingerprint identification chip aligned with a touch panel having a fingerprint identification function on the touch panel.

With the development of multimedia technology, more and more smart portable electronic devices such as mobile phones, personal digital assistants (PDAs), digital cameras, laptop computers or tablet devices or wearable devices are linked to people's lives. It has become a tool. However, since these portable electronic devices have very strong personalization characteristics, if these portable electronic devices are lost or abused, the internal information such as phone books, photographs, materials, etc. Everyone will be used by others and will suffer unnecessary losses.

Therefore, certain identification and permission management are installed in these products to ensure the safety of user privacy. The main method of identity authentication currently employed is password protection, where the user can enter the device's operation page by first entering the correct password into the portable electronic device. However, the security of password protection is low. This is because passwords can be easily stolen or analyzed. Furthermore, if the user forgets the password, it is also very troublesome. As a result, portable electronic devices with identification that are identified by fingerprints have come to market. Since each person's fingerprint is different, the fingerprint is the only feature, and adopting the fingerprint for identification identification improves safety. Furthermore, the identification method for fingerprint identification is relatively convenient, and saves the user from having to memorize and input a password.

JP 2001-28790 A

Current fingerprint identification systems are widely applied to wearable devices or portable devices. As a problem to be solved, it is necessary to install the laptop keyboard of the example of the most commonly used fingerprint identification device independently at a fixed position on the fixed side, or the wearable portable device at a fixed position on the back side or one bottom side. It cannot be effectively aligned on the touch screen of the wearable portable device, and the volume of the wearable handheld action device cannot be reduced. Known fingerprint identification chip packaging modules mainly include a substrate, a chip and a potting body. The chip is placed on the substrate and electrically connected to the substrate, and the potting body covers the surface of the substrate and the chip.

Generally, when a chip sensing area is touched with a finger, the outer surface of the chip is covered with a multilayer film, so that the entire thickness of the chip packaging module is increased and the sensitivity of the chip packaging module is decreased.

In addition, the known slip-type fingerprint identification system has directionality, the identification time is too long, and it has to be installed independently, so neither structural alignment nor convenience of use is good.

  The present invention includes a glass substrate, an electrode layer, a first insulating layer, a second insulating layer, and a fingerprint identification and sensing layer. The glass substrate includes first and second planes, the electrode layer is disposed on the second plane, the electrode layer includes a plurality of first and second electrodes and a plurality of metal wirings, and the first and second electrodes are The plurality of metal wirings are selected and electrically connected. The first insulating layer covers the intersection of the first and second electrodes. The second insulating layer covers the aforementioned electrode layer. The fingerprint identification sensing layer is disposed on the second insulating layer, and includes a plurality of fingerprint identification chips and a plurality of transmission conductors, and the plurality of fingerprint identification chips are electrically connected to the plurality of transmission conductors. Features.

  The touch panel having the fingerprint identification function of the present invention has the advantages of greatly reducing the entire manufacturing cost and further improving the accuracy of fingerprint identification by matching the fingerprint identification chip and the touch panel.

1 is an exploded view of a first embodiment of a touch panel having a fingerprint identification function according to the present invention. 1 is an assembled cross-sectional view of a first embodiment of a touch panel having a fingerprint identification function according to the present invention. FIG. 4 is an assembled cross-sectional view of a second embodiment of a touch panel having a fingerprint identification function according to the present invention. FIG. 5 is an assembled cross-sectional view of a third embodiment of a touch panel having a fingerprint identification function according to the present invention. It is an overhead view of the fingerprint identification layer of the fourth embodiment of the touch panel having the fingerprint identification function of the present invention. It is a local enlarged view of FIG.

It is a main object of the present invention to provide a touch panel having a fingerprint identification function that effectively improves the above-described problems and integrates a fingerprint identification chip and a touch panel.

To achieve the above object, the present invention provides a touch panel having a fingerprint identification function including a glass substrate, an electrode layer, a first insulating layer, a second insulating layer, and a fingerprint identification sensing layer.

The glass substrate includes a first plane and a second plane, and a touch area and a non-touch area are positioned on the first plane, and the non-touch area is adjacent to the touch area. The electrode layer is disposed on a second plane of the glass substrate, the electrode layer includes a plurality of first electrodes, a plurality of second electrodes, and a plurality of metal wirings, and the first and second electrodes are the plurality of metals. Select wiring and make electrical connection. The first insulating layer partially covers the first and second electrode intersections. The second insulating layer covers the aforementioned electrode layer. The fingerprint identification sensing layer is disposed on the second insulating layer and includes a plurality of fingerprint identification chips and a plurality of transmission conductors. The plurality of fingerprint identification chips are in electrical communication with the plurality of transmission conductors. Matching the fingerprint identification chip on the touch panel not only saves manufacturing costs but also increases touch sensitivity and accuracy.

The above-mentioned object of the present invention and the structural and functional characteristics thereof will be described with reference to the drawings.

1 and 2 are three-dimensional exploded and assembled sectional views of the first embodiment of the touch panel having the fingerprint identification function of the present invention. As shown in the drawing, the touch panel 1 having a fingerprint identification function of the present invention includes a glass substrate 11, an electrode layer 12, a first insulating layer 13, a second insulating layer 14, and a fingerprint identification sensing layer 15.

The glass substrate 11 includes a first plane 11a and a second plane 11, and a touch area 11c and a non-touch area 11d are positioned on the first plane 11a, the non-touch area 11d is adjacent to the touch area 11c, and the non-touch The area 11d is installed outside the touch area 11c, and the first and second planes 11a and 11b are installed separately on the glass substrate 11 and on both lower sides.

The electrode layer 12 is installed on the second plane 11b of the glass substrate 11, and the electrode layer 12 includes a plurality of first electrodes 121, a plurality of second electrodes 122, and a plurality of metal wirings 123. The two electrodes 121 and 122 are selected to be electrically connected to the plurality of metal wirings 123. The plurality of metal wirings 123 are installed in the non-touch area 11 d of the second plane 11 d of the glass substrate 11.

The first insulating layer 13 covers the intersections of the first and second electrodes 121 and 122 described above, and when the first and second electrodes 121 and 122 are wired, a part of the area is overlapped and contacted. The first insulating layer 13 covers the intersections of the plurality of first and second electrodes 121 and 122, and the first electrode 121 or the second electrode 122 is smoothly extended and wired.

The second insulating layer 14 covers the electrode layer 12 described above and completely covers the first and second electrodes 121 and 122, the first insulating layer 13 and the plurality of metal wirings 123 to ensure an insulating effect.

The fingerprint identification sensing layer 15 is disposed on the second insulating layer 14 and includes a plurality of fingerprint identification chips 151 and a plurality of transmission conductors 152, and the plurality of fingerprint identification chips 151 are connected to the plurality of transmission conductors 152. Electrical connection. The plurality of fingerprint identification chips 151 include a sensing area 151a and an uppermost surface 151b, and the sensing area 151a is formed on the uppermost surface 151b.

The present invention mainly aligns the plurality of fingerprint identification chips 151 in the fingerprint identification sensing layer 15 and the electrode layer 12 in the touch area 11c, thereby achieving an improvement in accuracy and a reduction in manufacturing cost.

FIG. 3 is an assembled cross-sectional view of a second embodiment of a touch panel having a fingerprint identification function according to the present invention. As shown in the figure, the technical features of the partial structure of the present embodiment are the same as those of the first embodiment described above, and therefore will not be described again here. The difference between the present embodiment and the first embodiment described above is that the touch panel 1 having the fingerprint identification function is further provided with a shielding layer 16. The shielding layer 16 is installed in the non-touch area 11b of the second plane 11d of the glass substrate 11, and the shielding layer 16 is installed between the glass substrate 11 and the metal wiring 123, and further by the shielding layer 16 The plurality of metal wirings 123 are shielded from being exposed to the outside.

FIG. 4 is an assembled cross-sectional view of a third embodiment of a touch panel having a fingerprint identification function according to the present invention. As shown in the figure, the technology and characteristics of the partial structure of the present embodiment are the same as those of the first embodiment described above, and therefore will not be described again here. The difference between the present embodiment and the first embodiment described above is that the touch panel 1 having the fingerprint identification function is further provided with a protective layer 17, which covers the fingerprint identification sensing layer 15 and further the protective layer 17 is One of epoxy resin, acrylic resin, and silicon. Further, the protective layer 17 prevents the back side of the fingerprint identification sensing layer 15 from being exposed to the outside.

5 and 6 are an overhead view and a local enlarged view of a fingerprint identification layer of a fourth embodiment of the touch panel having the fingerprint identification function of the present invention. As shown in the figure, the technical features of the partial structure of the present embodiment are the same as those of the first embodiment described above, and therefore will not be described again here. The difference between this embodiment and the first embodiment described above is that the fingerprint identification sensing layer 15 is further provided with a plurality of metal conductors 153. The metal lead 153 is transparent and is installed adjacent to the plurality of fingerprint identification chips 151. By installing the metal lead 153, the identification rate at which the fingerprint identification chip 151 performs fingerprint identification is improved.

DESCRIPTION OF SYMBOLS 1 Touch panel 11 provided with fingerprint identification function Glass substrate 11a First plane 11b Second plane 11c Touch area 11d Non-touch area 12 Electrode layer 121 First electrode 122 Second electrode 123 Metal wiring 13 First insulating layer 14 Second insulating layer 15 Fingerprint identification sensing layer 151 Fingerprint identification chip 151a Sensing area 151b Top surface 152 Transmission lead 153 Metal lead 16 Shielding layer 17 Protective layer

Claims (7)

In the touch panel with fingerprint identification function,
A glass substrate that includes a first plane and a second plane, is installed on each of the upper and lower sides of the glass substrate, and a touch area and a non-touch area are positioned on the first plane, and the non-touch area is adjacent to the touch area. When,
An electrode that is installed on the second plane of the glass substrate and includes a plurality of first electrodes, a plurality of second electrodes, and a plurality of metal wirings, and the first and second electrodes select and electrically connect the plurality of metal wirings Layers,
A first insulating layer covering the intersection of the first and second electrodes, and
A second insulating layer covering the aforementioned electrode layer;
A plurality of fingerprint identification chips and a plurality of transmission conductors are provided on the second insulating layer, and the plurality of fingerprint identification chips include a fingerprint identification sensing layer electrically connected to the plurality of transmission conductors. Touch panel with fingerprint identification function.   2. The touch panel with a fingerprint identification function according to claim 1, wherein the plurality of fingerprint identification chips have a sensing area and a top surface, and the sensing area is formed on the top surface.   The touch panel having the fingerprint identification function further includes a shielding layer, and the shielding layer is installed in a non-touch area on the second plane of the glass substrate, and the shielding layer is interposed between the glass substrate and the metal wiring. The touch panel provided with the fingerprint identification function according to claim 1, wherein the touch panel is installed.   The touch panel having the fingerprint identification function further includes a protective layer and covers the fingerprint identification sensing layer, and the protective layer is any one of epoxy resin, acrylic resin, or silicon. A touch panel provided with the fingerprint identification function according to claim 1.   2. The touch panel having a fingerprint identification function according to claim 1, wherein the metal wiring is installed in the non-touch area.   2. The touch panel having a fingerprint identification function according to claim 1, wherein the fingerprint identification sensing layer further comprises a plurality of metal conductors, and the metal conductors are transparent and disposed adjacent to the plurality of fingerprint identification chips. .   The touch panel with a fingerprint identification function according to claim 1, wherein the non-touch area is installed outside the touch area.

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